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A21401 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.3150 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND, inner_ring_width: 0.3900 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6665-00-675-9422, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
A21401
NSN: 6665-00-675-9422
FSC: 6665
CAGE: 06442 — MIRION TECHNOLOGIES (CANBERRA), INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.3150 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
inner_ring_width0.3900 INCHES NOMINAL IN
outer_ring_width0.4060 INCHES NOMINAL IN
special_featuresINTERNAL CLEARANCE MEASURED UNDER 2.2 LB GAGE LOAD,BLACK OXIDE COATED SHIELDS LBS
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0004 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL IN
lubrication_materialGREASE
NSN6665-00-675-9422
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,BALL,ANNULAR TITLE COMPONENT PN A21401 MFR BEARING,BALL,ANNULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
44147Interchangeable
interchangeable cross-reference
interchangeable
13377Interchangeable
interchangeable cross-reference
interchangeable
2001 77Interchangeable
interchangeable cross-reference
interchangeable
113-55Interchangeable
interchangeable cross-reference
interchangeable
DN11355Interchangeable
interchangeable cross-reference
interchangeable
26528-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A21401?
A21401 is a BEARING,BALL,ANNULAR.
What parts can replace A21401?
There are 17 known substitutes for A21401: 44147, 13377, 2001 77 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A21401?
A21401 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6665-00-675-9422. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026